题目内容

52.AfterEffects中,用下面的什么运算可以求一个图层上mask1和mask2之间的交集(假设mask1和mask2的不透明度为100%,且mask1在mask2的上面)?

A. mask1为Add方式,mask2为Subtract方式
B. mask1为Add方式,mask2为Intersect方式
C. mask1为Add方式,mask2为Difference方式
D. mask1为Add方式,mask2为Add方式

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